Door for grain cars



G. L. REDSHAW.

DOOR FOR GRAIN CARS.

APPLICATION FILED SEPT. I. 1920.

2 SHEETS-SHEET l- INVENTOR. Q0gelM Patented Feb. 14, 1922.-

A TTORN E Y.

G. L. REDSHAW.

DOOR FOR GRAIN CARS.

APPLICATION FILED SEPT. I, 1920.

1,406,394, Patented Feb.14, 1922.

2 SHEETS-SHEET 2- IN VEN TOR.

lJNlTED STATES PATENT OFFICE.

DOOR FOR GRAIN CARS.

Specification of Letters Patent.

Patented Feb. 14, 1922.

Application filed septemberl, 1920. Serial No. 407,338.

To all whom it may concern Be it known that I, Gnonen L. RnosHAw, a citizen of the United States, residing at Grenora, in the county of lVilliams and State of North Dakota, have invented certain new and useful Improvements in a Door for Grain Cars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will on able others skilled in the art to which it appertains to make and use the same.

This invention relates to a door for grain cars, and the object is to provide a door comprising an upper and a lower section, with particular means for operating or controlling said sections independently.

A further object is to provide, in CO11T180 tion with a door formed in a plurality of sections, a plurality of collapsible and detachable rails for guiding the sections in their movement to operative position, one of the rails serving to effect the closing of the narrow opening which would otherwise be left between the upper and lower sections.

A still further object is to provide a door comprising a plurality of sections movable independently to closed position, particular means for effecting such closing movement, a guiding device or devices each comprising a plurality of collapsible sections, and each detachably mounted in the door way, and means for preventing the passage of grain around the edge portions of the doors.

lVith the foregoing and other objects in view, the invention consists in the novel construction, combination, and arrangement of elements hereinafter described and claimed.

In the accompanying drawings:

Figure 1 is a fragmentary longitudinal sectional view through a car equipped with the improved door and looking toward the door which is shown in open position and. with the novel guide rails in. place.

Figure 2 is a fragmentary side elevation of such car with several of the door sections open and one door section closed;

Figure 3 is a vertical section through the car taken transversely of the door section, and

Figure 4: is a detail perspective view to illustrate the construction of the guide rails.

The main sections of the door are desig nated 10, 11 and 12, the lower section being whereby the door, or the sections upper section of the door is closed.

provided with an opening let adapted to be closed by a slide 15. This slide permits of the discharge of grain through a chute in filling a wagon body.

Mounted on each door and extending longitudinally thereof is a rack bar 17 adapted for engagementby a gear wheel 18 with which a beveled gear wheel 19 is rigidly connected. This wheel last named meshes with a beveled gear wheel 20 on a stub shaft 21, the end of which has an annular portion 22 for receiving the socket 23 of a crank 24. The crank is detachable, and may be used for operating any door.

An angle bar 25 extending vertically at one side of the door way provides means thereof when closed, effect a grain tight connec- 'tion.

Rails 26 and 27 act as guiding devices for the sections of the door, and further operate to eifect grain tight connections, so that the grain, under considerable pressure due to the movement of the car, cannot be shaken out, even in small quantities. Each rail 26, 27 comprises a plurality of sections pivotally connected, so that these elements may be collapsed in the manner shown in the drawing. The pivotal connection is designated 28, and the adjacent ends of the sections 26 and 27 abut when they aline to guard against accidental displacement -through downward movement. Slots on the sections 26 and 27 at 29 receive pins 30 on the bar 25 and an upright 81 at the opposite side of the doorway in order to removably mount said sections 25 and 27.

The rails maybe H-shaped in cross section so that the doors may be disposed and slide in the grooves thereof, and the rail 27 will of course be placed in position before the If desired, both rails may be placed in position before the lower door is closed, assuming that the sections of the respective rails are connected to permit them to collapse in one direction only.

One of the particular features of this door should be emphasized in addition to the advantages previously referred to. The various elements are in an important sense independent of each other, so that any broken or imperfect parts may be readily replaced without the necessity of doing any repair work, but on the other hand all of the elements cooperate in producing a single re sult when it is desired that the door should be fully closed and practically sealed.

Having thus described the invention, what I claim is 1. In a device of the class described, a movable door, a guide rail supporting said door in open position, and a collapsible rail for disposition across the doorway independently of movement of the door and in continuation of said guide rail to support said door in and to facilitate movement of said door to closed position.

2. In a device of the class described, a'

door, a rail on which the door slides disposable across the doorway independently of movement of the door, supporting means for said rail, said rail having relatively 1novable alinable sections, and said rail being engageable with said positioning means through movement of said sections into alinement.

3. In a device of the class described, a door comprising a plurality of sections independently inovable, arack bar carried by each section, a rotatable element engaging each rack bar, and a detachable and collapsible guiding device adapted to be mounted in the door way and to guide the upper portion of a lower door section, and the lower portion of the adjacent upper door section. v 1

4. A device of the class described, a door, a rail, supportingmeans for the rail adjacent opposite sides of the door way engageable by the rail adjacent opposite ends, said door bein slidable on the rail, said rail being folcfable' and applicable to said supporting means through unfolding 1novement.

In a device of the class described, a plurality of door sections, means for operat ing said sections independently and longitudinally of each other, and a guiding rail adapted to be detachably mounted in a door way between adjacent sections, the rail being formed in sections pivotally connected andor H'-shape in cross section, the rail sections being collapsible in one direction and braced against movement in the opposite direction.

In testimony whereof I affix my signature in the presenceof two Witnesses.

GEORGE L. REDSHAV. \Vitnesses:

1 A. QA NE,

ALVIN Nnss. 

